Rotary engine.



No. 632.404. Patented Sept. 5, I899. J. L. FARNES.

ROTARY ENGINE.

(Application filed Dec. 8, 1898.)

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No. 632.404. Patented se t. 5, I899.

.1. L. FARNES.

ROTARY ENGINE.

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JOHN L. FARNES, OF REXBURG, IDAHO.

ROTARY ENGINE.

SPECIFICATION forming part of Letters Patent No. 632,404, dated September 5, 1899.

Application filed December 8, 1898. Serial No. 698,676. (No model.)

T 0 all whom it may concern:

Be it known that 1, JOHN L. FARNES, a citizen of the United States, residing at Rexbu rg, in the county of Fremont and State of Idaho, have invented certain new and useful 11nprovements in RotaryEngines; and I dohereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in rotary engines; and it consists in certain novel features of construction and combinations of parts, as will be hereinafter more fully described and claimed.

In the accompanying drawings, illustrating the invention, Figure l is a side elevational view of my improved rotary engine. Fig. 2 is an end elevation of the same. Fig. 3 is a cross-section, and Fig. 4 is a vertical longitudinal section.

Referring now more particularly to the said drawings, A represents a base or bed plate, and B a cylinder mounted thereon. This cylinder is cast integrally with a base-piece O, bolted or otherwise suitably secured to the bed-plate and formed at each end with flanges (Z, to which the heads D are bolted. The central portion E of the cylinder is enlarged and formed at its upper end with a steam-chest f, having a detachable face-plate g. This faceplate may be readily and conveniently removed when it is desired to get access to the steam-chest and induction-pipes for the purpose of cleaning, repairing, or replacing defective or worn-out parts.

The rotary piston-wheel H is mounted on a shaft I, journaled in bearingsj on the cylinder-heads D, and carries at one end 'a flywheel J. The opposite end of the shaft may be provided with a belt-wheel or pulley for transmitting power. Automatic oil-cups] of suitable construction are provided to feed oil to the bearings.

The piston-wheel fits steam-tight in the cylinder B and is formed with an annular series of steam pockets 70, which are beveled or rounded off at their outer side and end edges to facilitate the ingress and egress of steam and prevent condensation by the direct impingement of the steam against an angular surface. Steam is fed to these pockets through two oppositely-disposed channels or passages it, which are in communication at their upper ends with two steam-induction pipes mm, leading from the steam chest. The lower ends of said channels or passages open into the piston-chamber and are adapted to supply steam simultaneously to pockets at diametrically opposite sides of the wheel, the arrangement being such that steam from one passage impinges directly against the bottom of one pocket, while the steam from the 0pposite channel impinges against the top of the other pocket.

Live steam enters the chest f from the main supply-pipe through an inverted-U-shaped union-pipe N, the parallel tubular arms n of which are fitted steam-tight in the face-plate g, in line with the induction-pipes m m. A slide-valve 0 controls the passage of steam to said pipes 'm m and is connected at its outer end to a pivoted handle 0.

At the lower end of the cylinder is an eduction-passage p, which leads to an exhaustpipe q, tapped into the base 0, and at the upper end of the'cylinder, below the steamchest, is an exhaust-steam chamber 0", through which the lower ends of the induction-pipes mm pass. Leading from said chamberis an eduction-passage s, which extends around the side of the cylinder and communicates at its lower end with an exhaust-pipe 25. By this construction it will be seen that the steam exhausting from the pockets on the descending side of the piston discharges into the passage 19, while the steam from the pockets on the ascending side of the piston first discharges into the chamber 7' and thence passes into the passage 8. The pipes on m being in contact with the steam in chamber *1" are maintained in a highly-heated state, which serves to retard condensation of the live steam passing therethrough.

From the above description, taken in connection with the accompanying drawings, the construction and mode of operation of myimproved rotary engine will be apparent. It will be seen that the invention provides a motor of this type which is simple and effective in construction and embodies certain advantages due to its construction alone.

Having thus fully described my invention, what I claim as new and useful, and desire to secure by Letters Patent 0f the United States,

1. Arotary engine comprising in combination, a cylinder provided with a steamchest, and an exhaust steam chamber below the same and in communication with an exhaustpassage, a piston-Wheel mounted to revolve in said cylinder, duplicate steam-induction passages leading to said wheel, duplicate steam-induction pipes leading from the chest through said exhaust-steam chamber to the induction-passages, a detachable face-plate on the steam-chest, and a steam-supply pipe connected with said face-plate, substantially as described.

2. A rotary engine comprising, in combination, a cylinder provided with a steam-chest and a steam-exhaust chamberbelow the same, two exhaust-pipes, an eduction-passage leading from said exhaust-chamber to one of the exhaust-pipes, a second eduction-passage at the lower end of the cylinder and leading to the other exhaustpipe, a piston-Wheel having an annular series of steam-pockets, du- 

